Characterization of the heavy metal pyrochlore lattice superconductor CaIr2

Neel Haldolaarachchige, Quinn Gibson, Leslie M. Schoop, Huixia Luo, R. J. Cava

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

We report the electronic properties of the cubic laves phase superconductor CaIr2 (Tc=5.8K), in which the Ir atoms have a pyrochlore lattice. The estimated superconducting parameters obtained from magnetization and specific heat measurements indicate that CaIr2 is a weakly coupled BCS superconductor. Electronic band structure calculations show that the Ir d-states are dominant at the Fermi level, creating a complex Fermi surface that is impacted substantially by spin-orbit coupling.

Original languageEnglish (US)
Article number185701
JournalJournal of Physics Condensed Matter
Volume27
Issue number18
DOIs
StatePublished - May 13 2015

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Keywords

  • BCS
  • Ir-superconductor
  • band structure
  • laves phase
  • pyrochlore
  • spinorbit coupling
  • weak coupling superconductor

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